"Bye, Bye, Baby " is a popular song written by Bob Crewe and Bob Gaudio. The Four Seasons' version of the song made it to No. 1 in Canada and No. 12 on the US Billboard Hot 100 in 1965. On the original issue of the single, the title was "Bye Bye Baby". However, on the album, The 4 Seasons Entertain You, and on later issues of the song, the name was changed to the longer, more familiar one. The song is about saying goodbye, not because the person is unloved but rather because the relationship is adulterous.